Davy Jones Locker is darker and murky ocean bottom great for your sunken treasure and ship. Davy Jones’s Locker is an idiom for the bottom of the sea: the resting place of drowned sailors. It is used as a euphemism for death at sea (to be sent to Davy Jones's Locker),[1] whereas the name Davy Jones is a nickname for what would be the devil/saint/god of the seas. The origins of the name are unclear and many theories have been put forth, including incompetent sailors, a pub owner who kidnapped sailors, or that Davy Jones is another name for the devil – as in, “Devil Jonah”. This nautical superstition was popularized in the 1800s